What is a Trojan Virus?

What is a Trojan Virus? How to Detect and Remove It?

A Trojan (short for Trojan Horse) is a type of malware that disguises itself as legitimate software to trick users into installing it. Once active, it can steal data, spy on your activity, or give remote attackers access to your system — all without your knowledge.

What Does a Trojan Do?

Records your keystrokes and steals passwords

Allows remote access to your system

Activates your webcam or microphone secretly

Encrypts or deletes your files

Uses your system for cryptomining

Spreads through the network to other devices

How Do Trojans Infect Computers?

Email attachments (.exe, .zip, .docm files)

Cracked or pirated software

Fake software updates or download sites

Malicious pop-up ads

Infected USB drives

Signs of a Trojan Infection

Sluggish system performance

Sudden spikes in internet usage

Disabled firewall or antivirus

Unknown programs opening on startup

Suspicious background processes

Browser redirects or fake search engines

How to Remove a Trojan Virus

1. Boot in Safe Mode

This disables non-essential programs and gives you more control over infected systems.

2. Run a Full System Scan

Use trusted antivirus tools like Bitdefender, Kaspersky, or Malwarebytes to detect and remove Trojan malware.

3. Manual Removal (Advanced)

You may need to identify suspicious processes in Task Manager, disable unknown startup programs, or clean the Windows Registry — but be careful, this requires expertise.

4. Use System Restore

Revert your system to a previous state before the infection occurred.

5. Format and Reinstall (As Last Resort)

If removal fails, a full clean install of your OS ensures complete elimination — but back up your files first!

How to Stay Protected from Trojans

Never open suspicious email attachments

Avoid pirated software and sketchy downloads

Use ad-blockers to prevent malicious pop-ups

Always keep your antivirus updated

Enable firewall and system updates

Use strong passwords and two-factor authentication